When Luckin Coffee shares, which were already down 89% for the year, were halted in April amid an investigation into financial misconduct, losses were felt far and wide. One investor with a PG-13 Reddit name took a particularly grievous hit.

OPEC, Russia and allies were set on Saturday to extend record oil production cuts until the end of July after crude prices doubled in the past two months on the back of their efforts to withdraw almost 10% of global supplies from the market.